<!DOCTYPE HTML>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>db_select实验界面</title>

    <script type="text/javascript" src="./js/jquery-1.8.3.min.js"></script>
    <style type="text/css">
        ${demo.css}
    </style>
</head>
<body>

<script src="./js/highcharts.js"></script>
<script src="./js/exporting.js"></script>

<div id="container" style="width: 800px; height: 400px; margin: 0 auto"></div>



<script type="text/javascript">

    $(document).ready(function () {
        Highcharts.setOptions({
            global: {
                useUTC: false
            }
        });

        Highcharts.chart('container', {
            chart: {
                type: 'spline',
                animation: Highcharts.svg, // don't animate in old IE
                marginRight: 10,
                events: {
                    load: function () {
                        // set up the updating of the chart each second
                        var series = this.series[0];
                        setInterval(function () {
                            var x = (new Date()).getTime(), // current time
                                y = parseFloat($.ajax({url:'/insertDb',async:false}).responseText);
                            series.addPoint([x, y], true, true);
                        }, 3000);
                    }
                }
            },
            title: {
                text: 'select db'
            },
            xAxis: {
                type: 'datetime',
                tickPixelInterval: 150
            },
            yAxis: {
                title: {
                    text: 'Value'
                },
                plotLines: [{
                    value: 0,
                    width: 1,
                    color: '#808080'
                }]
            },
            tooltip: {
                formatter: function () {
                    return '<b>' + this.series.name + '</b><br/>' +
                        Highcharts.dateFormat('%Y-%m-%d %H:%M:%S', this.x) + '<br/>' +
                        Highcharts.numberFormat(this.y, 2);
                }
            },
            legend: {
                enabled: false
            },
            exporting: {
                enabled: false
            },
            series: [{
                name: 'Random data',
                data: (function () {
                    // generate an array of random data
                    var data = [],
                        time = (new Date()).getTime(),
                        i;

                    for (i = -19; i <= 0; i += 1) {
                        data.push({
                            x: time + i * 1000,
                            y: 1
                        });
                    }
                    return data;
                }())
            }]
        });
    });
</script>
</body>
</html>